Question
Please help!
I need to factorise and solve this equation,
x^2 +x -30 =0
I then need to explain how I would use the answer drom this to solve the equation
4x^2 +4x-120=0
I need to factorise and solve this equation,
x^2 +x -30 =0
I then need to explain how I would use the answer drom this to solve the equation
4x^2 +4x-120=0
Answers
Reiny
first one ...
(x+6)(x-5) = 0
x = -6 or x = 5
2nd
4x^2 +4x-120=0 divide each term by 4
x^2 + x - 30 = 0
mmmhh!!
(x+6)(x-5) = 0
x = -6 or x = 5
2nd
4x^2 +4x-120=0 divide each term by 4
x^2 + x - 30 = 0
mmmhh!!
Dereck
Many thanks for your help, I may be being a bit slow but how would I use the answer from the first equation to solve the second one?